A new study shows air pollution from Canada's oil sands could be 4 times higher than previously reported.
As rich countries have foundered, India and China have emerged as global leaders in tackling warming.
Here's why the March for Science was the perfect vehicle to talk about climate change.
Removing carbon dioxide from the air may be the most effective way to meet the globe's ambitious climate goals.
Communities across the West will have to adapt to living with the ever-increasing threat of wildfires.
A California appeals court rejected a claim that payments required to release greenhouse gases are a tax.
Coal use in the U.S. fell 9 percent in 2016, even as the Trump administration seeks a coal industry revival.
Dozens of GOP-sponsored bills have been introduced in Congress that seek to hamstring federal climate action.